Automatic cycle-pump.



No. 802,774.. PATBNTED OCT. 24, 1905. P. J. MGGINN.

AUTOMATIC GYCLEPUMP.

APPLICATION FILED FEB. 11.1905.

2 SHEETS-SHEET 1.

ATTORNEYS No. 802,774. PATENTED CCT. 24, 1905. P. J. MOGINN.

AUTOMATIC CYCLE PUMP.

APPLICATION FILED IBB. 11, 1905.

Ll M I',

@El E W ATTURNE v.ing pneumatic tires.

IUATRIUK JOSEPH MOGINN, OF BULAWAYO, MATABELELAND, SOUTH AFRICA.

AUTOMATIC CYCLEHFUIVIF..

Specification of Letters Patent.

Patented Oct. 24, 1905.

Application led February 11, 1905. Serial No. 245,236.

To a/ZZ whom it may concern: v

Be it known that I, PATRICK J osnrH Mc- GINN, a subject of the King ofGreat Britain, and a resident of Bulawayo, Matabeleland, South Africa,have invented a new and Improved Automatic Oycle-Pump, of which thefollowing is a full, clear, and exact description.

This invention relates to means for inat- Its object is to produce aconstruction which is incorporated with the wheel of a vehicle and whichwill operate automatically to inflate the pneumatic tire of the wheel asthe wheel rotates.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of a bicycle to which my invention has beenapplied. Fig. 2 is a side elevation of a portion of the front fork ofthe bicycle, representing in detail a part of the pump-operatingmechanism. Fig. 3 is a front elevation of the parts shown in Fig. 2.Fig. 4 is a horizontal section taken substantially upon the line 44 ofFig. 2. Fig. 5 is a perspective representing the manner in which I adaptcertain spokes of the wheel to the purpose of my invention. Fig. 6 isaseotion taken substantially upon the line 6 6 of Fig. 1 and looking'toward the center of the wheel, showing a portion of the pump cylinderor body in order to illustrate the manner of attaching the same to thespokes of the wheel. Fig. 7 is a vertical section taken substantiallycentrally through the construction shown in Fig. 6. Fig. 8 is an endelevation of the pump, showing a cross-head for operating the pistonthereof in connection with a portion of an actuating-lever. Fig. 9 is aplan of the parts shown in Fig. 8. Fig. 1() is a side elevation of atrip plat-e or bracket which is attached to the spokes of tbe wheel fora purpose which will appear more fully hereinafter. Fig. 11 representsthis trip-bracket in plan, the spokes being shown in section; and Fig.12 is a rear elevation of a clip which is adapted to be attached tothehandle-bars carrying levers which control the iniiating devices. Thisview shows a portion of the handle-bars and the frame of the bicycle.

Before proceeding with a detailed description of the invention it mayfacilitate the disclosure to state that the device or invention ispreferably constructed substantially in duplicate or in two distinctmechanisms, which are used, respectively, in connection with the forwardor rear wheels when the invention is applied to an ordinary bicycle, theonly diierence residing in the form of a clip attached to thebicycle-fork. This difference of form of the clip is due to thedifference of form of the forward and rear forks.

Referring more particularly to the parts, 1 represents the frame of anordinary bicycle of the common type known as a diamondframe, said frameincluding a rear fork 2, which leads downwardly from the seat-post tothe center of the rear wheel 3, and a forward fork II, which leadsforwardly from the head to the center of the forward wheel 5. The rearwheel 3 is driven in the usual manner by means of a sprocket-chain 6passing over the main sprocket-wheel 7, which is actuated by pedals 8 ofthe usual construction.

In applying my invention I provide a pair of contiguous spokes 9 of eachwheel with clamps 10. The construction of one of these clamps is veryclearly shown in Figs. 6 and 7. They are of course for the purpose ofattaching the body l1 of the pump. They comprise resilient bands l2,which encircle the body of the pump, as indicated, and they are providedwith oppositely-disposed ears 13 through which a clamping-bolt 14passes. Near the bases of the ears 13 the band. l2 is provided withoppositely-disposed openings 15, through which the spoke 9 passes, asindicated. Between the spoke and the body 1l of the pump saddles 16 areprovided, which consist of tapering plates having substantially the formof a crescent, as indicated most clearly in Fig. 7, the outer face ofeach plate, which is disposed against the spoke, being provided with agroove 17, which receives the spoke and alines substantially with theaforesaid openings 15, as will be readily understood. In applying theclamps they are attached in such manner as to support the pump betweenthe sets of spokes. The pumps are not of ordinary or common form, butare curved, as indicated, so that their axes lie substantially upon anarc of a circle. From each pump a suitable connection 18 leads to theinfiating-nipple 19 of the tires 20. The piston-rods 21 of the pumps arecurved to correspond with the shape of the pump-bodies, as will bereadily understood, so that when IOO the piston is extended from thepump it will project itself along the arc of a circle.

As indicated most clearly in Figs. 8 and 9, in connection with eachpiston there is a cross-head 2l, and each cross-head is attached to theextremity of a curved main lever 22, which lever is pivoted at 23 to thehub 24 of the wheel. (See Fig. l.) The lever 22 eX- tends beyond thepivot-point 23 and terminates in a pin 25, which is received in a slot26, as shown, the said slot being formed at the extremity of atrip-lever 27. This triplever 27 is pivotally mounted upon a spokeclip28, which attaches rigidly to the spokes in any suitable manner. Fromthis arrangement it should now be understood that if the outer extremity29 of the trip-lever 27 is rotated to and fro it would operate throughits corresponding main lever 22 to actuate the pump carried by thatwheel. The valve arrangement of the pump would be the same as ordinarilyemployed in pumps of this kind.

In order to make provision for clearance between the spokes and thecross-head 21, I provide, as necessary, certain spokes 3() with yokes3l. One of these spokes, with its yoke, is very clearly'shown in Fig. 5,which yoke consists, substantially, of a half-ring provided at itsextremities with sockets 32, which receive the ends of thespoke-sections, as indicated.

Arrangement is made for automatically operating the trip-levers 27. Tothis end the forward fork 4 is provided with a clip 33, and the rearfork 2 is provided with a clip 34. The construction of these clips issubstantially similar, except that they are modified as to form so as toadapt them especially to the fork to which they are attached. Theconstruction of the forward clip 33 and its contiguous parts will now bedescribed. This clip is most clearly illustrated in Figs. 2 to 4. Itconsists, substantially, of a clamp 35, adapted to attach to one prongof the fork 4, as indicated, the body 36 of the clamp being providedwith outwardly-projecting ears 37, rotatably supporting the spindle orshaft 38. This shaft rigidly carries an arm 39, which may projectinwardly across the forward edge of the fork, as indicated most clearlyin Fig. 3. The inner extremity of the arm 39 is preferably offsetupwardly, so as to present an elevated extension 40. Vhen the arm 39occupies the position in which it is shown in Fig. 3, it lies in thepath of the cross-head 21a, as indicated most clearly in Fig. 8. Fromthis arrangement it should be readily understood that the arm 39 willoperate automatically when the wheel rotates, so as to force the pistoninwardlyV with respect to the pump. The body of the arm 39 affords meansfor actuating the trip-lever 27, in the path of which it lies, asindicated most clearly in Fig. 3. The spindle 38 is provided,substantially 41, which engages the outer side of the body 36 of theclamp, so as to support the arm 39 in substantially the position inwhich it is shown in Fig. 3. A coiled spring 42 is employed, preferablydisposed about the spindle 38, and this spring operates to resist anupward movement of the inner extremity of the arm 39. The arms 39 of theclips 33 and 34 are controlled by Wires 43 44. The wire 43 leadsupwardly along the front fork 4, through an eye 43, to a lever 45. Thewire 44 leads to a point adjacent to the seat-post, where it is passedthrough an eye 46, and then runs horizontally, as shown at 47, near theside of the upper bar 49 of the frame 1 and is connected with a lever50, substantially similar to the lever 45. These controlling-levers 45and 50 are preferably pivotally mounted on a suit able clip 51, attachedto the bar 49 at a convenient point. The levers are normally in theposition in which they are shown in Fig. l2, at which time they willsupport the arm 39 in an elevated position, such as that indicated indotted outlines in Fig. 3. In this .way the arm may be removed from thepath of the cross-head and the trip-lever. In connection with the clip51 nibs or catches 53 are provided, the lower edges of which are engagedby the levers, so that they may prevent the arms 39 from being returnedto their operative position by the force of their springs.

In order to make provision for throwing the arms 39 out of the path ofthe cross-head, so as to allow the same to pass after the piston hasbeen returned to its innermost position, I arrange a trip-bracket 54,which attaches to the wheel in the manner indicated in Figs. 10 and 1l.The body of this bracket consists of a plate 55, which is disposed at aninclination, as shown. By means of the clipplates 56 this bracket isattached at a suitable point adjacent to the forward extremity of thepump-body with reference to the direction of rotation.' The bracket isso placed that the upper face of the plate 55 will strike againt theunder side of the extension 40 and throw the same upwardly, allowing thecrosshead to pass under the same, as will be readily understood.

By reason of the yokes 31, which are used in connection with certain ofthe spokes in the manner described, I am enabled to give the pump a longstroke, which increases its efficiency and usefulness.

From a study of the construction described it should be evident that myinvention or parts of the same may be readily applied to wheels ofalmost any construction, the mechanical design of the devices beingaltered, if necessary, without departing from the scope of theinvention, and while I have illustrated the invention as applied to abicycle it could of course be applied equally as well l to automobilesor other vehicles having pneuat its middle point, with a stop orprojection l matic tires.

IOO

IIO

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A wheel having a pneumatic tire, in combinationwith a pump carried by said wheel, a main lever adapted to actuate saidpump, a trip-lever making a sliding connection with said main lever, andautomatic means for actuating `said trip-lever.

2. A wheel having a pneumatic tire, in com bination with a pump carriedby said wheel, mechanism for actuating said pump upon rotating' saidwheel, a movable arm which may be projected into the path of saidmechanism, and automatic means for drawing said arm out of said path.

3. A Wheel having' a pneumatic tire, in combination with a pump carriedby said wheel, mechanism for actuating said pump, a mov able arm whichmay be projected into the path of said mechanism, and a trip-bracketcarried by said wheel and adapted to throw said arm out or' said path.

4. A wheel having a pneumatic tire, in combination with a pump foriniiating said tire, the axis of said pump being disposed upon an arc, apiston-rod constituting a part of said pump, a cross-head attached tosaid piston rod, a main lever attached to said cross-head, a trip-levermaking a sliding connection with said main lever and adapted to actuatethe same, and a movable arm adapted to engage said cross-head and saidtrip-lever.

5. A wheel having a pneumatic tire, in combination with a pump foriniiating said tire, the axis of said pump being disposed upon an arc, apiston-rod constituting a part of said pump, a cross-head attached tosaid pistonrod, a main lever attached to said cross-head, a trip-levermaking a sliding connection with said main lever and adapted to actuatethe same, a movable arm adapted to engage said cross-head and saidtrip-lever, and means for withdrawing' said arm.

6. A wheel having a pneumatic tire, in combination with a pump forinfiating said tire, the axis of said pump being disposed upon an arc, apiston-rod constituting a part of said pump, a cross-head attached tosaid pistonrod, a main lever attached to said cross-head, a trip-levermaking asliding connection with said main lever and adapted to actuatethe same, a movable arm adapted to engage said cross-head and saidtrip-lever, and a tripbracket carried by said wheel and presenting' aninclined face adapted to deflect said arm.

7. A Wheel having a pneumatic tire, in combination with a pump carriedby said wheel, said pump including a reciprocating member moving in apath transverse with respect to said spokes, the said spokes which lieadjacent to said path comprising yokes and having sections attached tosaid yokes.

l8. A wheel having a pneumatic tire, and spokes, in combination with apump, means for attaching said pump to said spokes, said pump includingapiston1'od adapted to move transversely of said spokes, the spokesadjacent to the path of said piston -rod being' formed in sections andhaving a yoke connecting said sections.

9. A bicycle having wheels with pneumatic tires, pumps carried by saidwheels, clips carried by the forward and rear forks of said bicycle andhaving arms adapted to actuate said pumps, lines leading' from saidarms, and levers to which said lines attach for controlling said arms.

10. A pump comprising' a body, clamps adapted to support said body,means for attaching said clamps to the spokes'or` a Wheel, said pumphaving a piston, a lever connected with said piston and adapted toattach pivotally to the hub of said wheel, means in connection with saidlever for actuating the same, and a member adapted to be attachedadjacent to said wheel and adapted to operate said pump as the wheelrotates.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

PATRICK JOSEPH MCGINN. Witnesses:

C. F. WEBB, G. M. KI-RSGHBAUM.

